FORM 160.60-O2 (1004)
29
YORK INTERNATIONAL
The PID Tuning Screen allows the operator to adjust
capacity controls tuning parameters. The screen depicts
four sensors
and their corresponding PID control
variables.
:
- TC-100 Chilled Water Out
- PC-111 Evaporator Pressure
- PC-113 Compressor Discharge Pressure
- JC-160 Engine Manifold Pressure
- TC-160 Engine Water Temperature
Move between entry fi elds using the keypad tab keys
on the keypad,
!
and
"
.
CHILLED WATER OUT TEMPERATURE
PV
Process variable; actual sensor reading in ºF
LOC SP
Local chilled water setpoint; also available on the
Evaporator Screen.
Output
Control variable output signal from 0 to 100%
LOW PRESSURE OVERRIDE
PV
Process variable; actual evaporator pressure sensor
reading in psig
Output
Control variable output signal from 0 to 100%
ENGINE LOAD LIMITER
PV
Process variable; calculated engine load in percent
Output
Control variable output signal from 0 to 100%
HIGH PRESSURE OVERRIDE
PV
Process variable; actual compressor discharge pressure
in psig
Output
Control variable output signal from 0 to 100%
2
PID TUNING SCREEN (CAPACITY CONTROLS)
FIG. 20 - PID TUNING SCREEN
LD09907
